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Igorina albeari
Taxonomy
Globorotalia albeari was named by Cushman and Bermúdez (1949).
It was recombined as Igorina albeari by Olsson et al. (1999).
It was recombined as Igorina albeari by Olsson et al. (1999).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1949 | Globorotalia albeari Cushman and Bermúdez p. 33 |
| 1999 | Igorina albeari Olsson et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Igorina albeari Cushman and Bermúdez 1949
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. A. Cushman and P. J. Bermúdez 1949 | Test very small for the genus, strongly biconvex, dorsal side showing all the coils and ventral side only the last-formed whorl, periphery somewhat rounded; chambers not very distinct, 9 or 10 in the last-formed whorl, only slightly inflated ventrally, increasing very gradually in size as added; sutures fairly distinct but only slightly depressed except in the
last whorl on the ventral side, rather strongly curved on the dorsal side; wall slightly spinose, coarsely perforate; aperture an elongate opening on the ventral side of the last-formed chamber extending from nearly the inner end to the periphery and with a distinct thin lip. Diameter 0.30-0.3 2 mm.; thickness 0.20 mm |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available